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  1. AU="Yith, Vuthy"
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  3. AU="Gupta, Anubhav" AU="Gupta, Anubhav"

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  1. Artikel ; Online: Antibiotic susceptibility and molecular characterization of resistance genes among Escherichia coli and among Salmonella subsp. in chicken food chains

    Yith Vuthy / Kruy Sun Lay / Heng Seiha / Alexandra Kerleguer / Awa Aidara-Kane

    Asian Pacific Journal of Tropical Biomedicine, Vol 7, Iss 7, Pp 670-

    2017  Band 674

    Abstract: Objective: To investigate the occurrence of resistance genes among Escherichia coli (E. coli) and Salmonella subsp. isolated in chicken food chains in Phnom Penh, 2012–2013. Methods: Six hundred eighty two E. coli and 181 Salmonella Albany, Corvallis, ... ...

    Abstract Objective: To investigate the occurrence of resistance genes among Escherichia coli (E. coli) and Salmonella subsp. isolated in chicken food chains in Phnom Penh, 2012–2013. Methods: Six hundred eighty two E. coli and 181 Salmonella Albany, Corvallis, and Kentucky strains were examined for susceptibilities to eight antimicrobials and following resistance genes were identified by PCR: blaTem, StrA, aadA, sul1, sul2, gyrA, Tet (A), and Tet (B). Results: E. coli presented high resistances to tetracycline, amoxicillin, and sulfamethoxazole (63.1%–76.1%). Salmonella Albany and Salmonella Kentucky traduced high resistance percentages to amoxicillin, tetracycline, sulfamethoxazole, and nalidixic acid (84.6%–100%). Among amoxicillin-resistant isolates, blaTem genes were observed for 62% of E. coli isolates and 20% of 65 Salmonella Kentucky. The StrA gene was prevalent in 36% of 331 aminoglycoside-resistant E. coli and 90% of 40 aminoglycoside-resistant Salmonella Corvallis. The sul2 gene was predominant among sulfamethoxazole-resistant isolates, for 56% of 431 E. coli and 53% of 66 Salmonella Corvallis; the sul1 gene was observed in 54% of Salmonella Albany. The Tet (A) resistance gene was prevalent in E. coli (86%), Salmonella Corvallis (82%), Salmonella Kentucky (84%). High percentages of gyrA genes observed among nalidixic-acid resistant E. coli (91%), Salmonella Albany (92%), Salmonella Corvallis (75%) and Salmonella Kentucky (85%). Conclusions: Important occurrences of resistance gene were observed among E. coli and Salmonella in chicken food chains in Cambodia.
    Schlagwörter Chicken food chains ; Escherichia coli ; Salmonella ; Resistance gene ; Susceptibility ; Arctic medicine. Tropical medicine ; RC955-962 ; Biology (General) ; QH301-705.5
    Sprache Englisch
    Erscheinungsdatum 2017-07-01T00:00:00Z
    Verlag Wolters Kluwer Medknow Publications
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel: Plugging the leaks: antibiotic resistance at human-animal interfaces in low-resource settings.

    Nadimpalli, Maya L / Stegger, Marc / Viau, Roberto / Yith, Vuthy / de Lauzanne, Agathe / Sem, Nita / Borand, Laurence / Huynh, Bich-Tram / Brisse, Sylvain / Passet, Virginie / Overballe-Petersen, Søren / Aziz, Maliha / Gouali, Malika / Jacobs, Jan / Phe, Thong / Hungate, Bruce A / Leshyk, Victor O / Pickering, Amy J / Gravey, François /
    Liu, Cindy M / Johnson, Timothy J / Hello, Simon Le / Price, Lance B

    Frontiers in ecology and the environment

    2023  Band 21, Heft 9, Seite(n) 428–434

    Abstract: Antibiotic resistance is one of the greatest public health challenges of our time. International efforts to curb resistance have largely focused on drug development and limiting unnecessary antibiotic use. However, in areas where water, sanitation, and ... ...

    Abstract Antibiotic resistance is one of the greatest public health challenges of our time. International efforts to curb resistance have largely focused on drug development and limiting unnecessary antibiotic use. However, in areas where water, sanitation, and hygiene infrastructure is lacking, we propose that bacterial flow between humans and animals can exacerbate the emergence and spread of resistant pathogens. Here, we describe the consequences of poor environmental controls by comparing mobile resistance elements among
    Sprache Englisch
    Erscheinungsdatum 2023-09-19
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2110853-5
    ISSN 1540-9309 ; 1540-9295
    ISSN (online) 1540-9309
    ISSN 1540-9295
    DOI 10.1002/fee.2639
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: CTX-M-55-type ESBL-producing Salmonella enterica are emerging among retail meats in Phnom Penh, Cambodia.

    Nadimpalli, Maya / Fabre, Laetitia / Yith, Vuthy / Sem, Nita / Gouali, Malika / Delarocque-Astagneau, Elisabeth / Sreng, Navin / Le Hello, Simon

    The Journal of antimicrobial chemotherapy

    2018  Band 74, Heft 2, Seite(n) 342–348

    Abstract: Background: Salmonella enterica is a leading cause of human gastroenteritis. S. enterica strains that produce ESBLs (ESBL-Salm) remain rare in Europe and North America, but less is known about their prevalence among animal-derived foods in countries ... ...

    Abstract Background: Salmonella enterica is a leading cause of human gastroenteritis. S. enterica strains that produce ESBLs (ESBL-Salm) remain rare in Europe and North America, but less is known about their prevalence among animal-derived foods in countries with weaker food safety practices and unregulated veterinary antibiotic use.
    Objectives: To examine the prevalence and characteristics of ESBL-Salm from retail meats in Phnom Penh, Cambodia.
    Methods: We tested fish, pork and chicken from two markets for ESBL- and carbapenemase-producing Salmonella from September-December 2016, using cefotaxime- and ertapenem-supplemented media, respectively. ESBL-Salm were sequenced and their genomes characterized. We performed plasmid conjugation experiments to assess the co-transferability of ESBL-encoding genes and MDR phenotypes.
    Results: Twenty-six of 150 fish and meat samples (17%) were positive for ESBL-Salm, including 10/60 fish (17%), 15/60 pork (25%) and 1/30 chicken (3%). Carbapenemase-producing Salmonella strains were not detected. Pork-origin ESBL-Salm were primarily serotypes Rissen (10/15) or a monophasic variant of Typhimurium 4,5,12:i:- (3/15), whereas Saintpaul (3/10) and Newport (4/10) were more common among fish. Most ESBL enzymes were encoded by blaCTX-M-55 genes (24/26) harboured on conjugative IncA/C2 (n = 14) or IncHI2 (n = 10) plasmids. Resistance to up to six additional drug classes was co-transferred by each plasmid type. ESBL-Salm were resistant to almost every antibiotic recommended for severe salmonellosis treatment.
    Conclusions: CTX-M-55-type S. enterica are highly prevalent among pork and fish from Phnom Penh markets and their spread appears to be mediated by MDR IncA/C2 and IncHI2 plasmids. Food safety must be improved and veterinary antibiotic use should be regulated to protect public health.
    Mesh-Begriff(e) Animals ; Anti-Bacterial Agents/pharmacology ; Bacterial Proteins/genetics ; Cambodia/epidemiology ; Chickens ; Drug Resistance, Multiple, Bacterial ; Fishes/microbiology ; Food Microbiology ; Gene Transfer, Horizontal ; Genome, Bacterial ; Meat/microbiology ; Plasmids/genetics ; Poultry/microbiology ; Prevalence ; Salmonella Infections, Animal/epidemiology ; Salmonella Infections, Animal/microbiology ; Salmonella enterica/enzymology ; Salmonella enterica/genetics ; beta-Lactamases/genetics
    Chemische Substanzen Anti-Bacterial Agents ; Bacterial Proteins ; beta-Lactamases (EC 3.5.2.6) ; carbapenemase (EC 3.5.2.6)
    Sprache Englisch
    Erscheinungsdatum 2018-10-30
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 191709-2
    ISSN 1460-2091 ; 0305-7453
    ISSN (online) 1460-2091
    ISSN 0305-7453
    DOI 10.1093/jac/dky451
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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    Verfügbar in ZB MED Köln/Königswinter

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  4. Artikel ; Online: Meat and Fish as Sources of Extended-Spectrum β-Lactamase–Producing Escherichia coli, Cambodia

    Maya Nadimpalli / Yith Vuthy / Agathe de Lauzanne / Laetitia Fabre / Alexis Criscuolo / Malika Gouali / Bich-Tram Huynh / Thierry Naas / Thong Phe / Laurence Borand / Jan Jacobs / Alexandra Kerléguer / Patrice Piola / Didier Guillemot / Simon Le Hello / Elisabeth Delarocque-Astagneau

    Emerging Infectious Diseases, Vol 25, Iss 1, Pp 126-

    2019  Band 131

    Abstract: We compared extended-spectrum β-lactamase–producing Escherichia coli isolates from meat and fish, gut-colonized women, and infected patients in Cambodia. Nearly half of isolates from women were phylogenetically related to food-origin isolates; a subset ... ...

    Abstract We compared extended-spectrum β-lactamase–producing Escherichia coli isolates from meat and fish, gut-colonized women, and infected patients in Cambodia. Nearly half of isolates from women were phylogenetically related to food-origin isolates; a subset had identical multilocus sequence types, extended-spectrum β-lactamase types, and antimicrobial resistance patterns. Eating sun-dried poultry may be an exposure route.
    Schlagwörter ESBL ; antibiotic resistance ; food safety ; lower- and middle-income countries ; Southeast Asia ; Escherichia coli ; Medicine ; R ; Infectious and parasitic diseases ; RC109-216
    Sprache Englisch
    Erscheinungsdatum 2019-01-01T00:00:00Z
    Verlag Centers for Disease Control and Prevention
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  5. Artikel ; Online: MLVA polymorphism of Salmonella enterica subspecies isolated from humans, animals, and food in Cambodia

    Sarthou Jean / Guillard Bertrand / Yith Vuthy / Leroy Philippe / Farbos-Granger Alexandra / van Cuyck Hélène / Koeck Jean / Kruy Sun

    BMC Research Notes, Vol 4, Iss 1, p

    2011  Band 306

    Abstract: Abstract Background Salmonella ( S .) enterica is the main cause of salmonellosis in humans and animals. The epidemiology of this infection involves large geographical distances, and strains related to an episode of salmonellosis therefore need to be ... ...

    Abstract Abstract Background Salmonella ( S .) enterica is the main cause of salmonellosis in humans and animals. The epidemiology of this infection involves large geographical distances, and strains related to an episode of salmonellosis therefore need to be reliably discriminated. Due to the limitations of serotyping, molecular genotyping methods have been developed, including multiple loci variable number of tandem repeats (VNTR) analysis (MLVA). In our study, 11 variable number tandem-repeats markers were selected from the S. enterica Typhimurium LT2 genome to evaluate the genetic diversity of 206 S. enterica strains collected in Cambodia between 2001 and 2007. Findings Thirty one serovars were identified from three sources: humans, animals and food. The markers were able to discriminate all strains from 2 to 17 alleles. Using the genotype phylogeny repartition, MLVA distinguished 107 genotypes clustered into two main groups: S. enterica Typhi and other serovars. Four serovars (Derby, Schwarzengrund, Stanley, and Weltevreden) were dispersed in 2 to 5 phylogenic branches. Allelic variations within S. enterica serovars was represented using the minimum spanning tree. For several genotypes, we identified clonal complexes within the serovars. This finding supports the notion of endemo-epidemic diffusion within animals, food, or humans. Furthermore, a clonal transmission from one source to another was reported. Four markers (STTR3, STTR5, STTR8, and Sal20) presented a high diversity index (DI > 0.80). Conclusions In summary, MLVA can be used in the typing and genetic profiling of a large diversity of S. enterica serovars, as well as determining the epidemiological relationships of the strains with the geography of the area.
    Schlagwörter Medicine ; R ; Biology (General) ; QH301-705.5 ; Science (General) ; Q1-390
    Thema/Rubrik (Code) 630
    Sprache Englisch
    Erscheinungsdatum 2011-08-01T00:00:00Z
    Verlag BMC
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  6. Artikel ; Online: MLVA polymorphism of Salmonella enterica subspecies isolated from humans, animals, and food in Cambodia.

    van Cuyck, Hélène / Farbos-Granger, Alexandra / Leroy, Philippe / Yith, Vuthy / Guillard, Bertrand / Sarthou, Jean Louis / Koeck, Jean Louis / Kruy, Sun Lay

    BMC research notes

    2011  Band 4, Seite(n) 306

    Abstract: Background: Salmonella (S.) enterica is the main cause of salmonellosis in humans and animals. The epidemiology of this infection involves large geographical distances, and strains related to an episode of salmonellosis therefore need to be reliably ... ...

    Abstract Background: Salmonella (S.) enterica is the main cause of salmonellosis in humans and animals. The epidemiology of this infection involves large geographical distances, and strains related to an episode of salmonellosis therefore need to be reliably discriminated. Due to the limitations of serotyping, molecular genotyping methods have been developed, including multiple loci variable number of tandem repeats (VNTR) analysis (MLVA). In our study, 11 variable number tandem-repeats markers were selected from the S. enterica Typhimurium LT2 genome to evaluate the genetic diversity of 206 S. enterica strains collected in Cambodia between 2001 and 2007.
    Findings: Thirty one serovars were identified from three sources: humans, animals and food. The markers were able to discriminate all strains from 2 to 17 alleles. Using the genotype phylogeny repartition, MLVA distinguished 107 genotypes clustered into two main groups: S. enterica Typhi and other serovars. Four serovars (Derby, Schwarzengrund, Stanley, and Weltevreden) were dispersed in 2 to 5 phylogenic branches. Allelic variations within S. enterica serovars was represented using the minimum spanning tree. For several genotypes, we identified clonal complexes within the serovars. This finding supports the notion of endemo-epidemic diffusion within animals, food, or humans. Furthermore, a clonal transmission from one source to another was reported. Four markers (STTR3, STTR5, STTR8, and Sal20) presented a high diversity index (DI > 0.80).
    Conclusions: In summary, MLVA can be used in the typing and genetic profiling of a large diversity of S. enterica serovars, as well as determining the epidemiological relationships of the strains with the geography of the area.
    Sprache Englisch
    Erscheinungsdatum 2011-08-24
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2413336-X
    ISSN 1756-0500 ; 1756-0500
    ISSN (online) 1756-0500
    ISSN 1756-0500
    DOI 10.1186/1756-0500-4-306
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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